News tagged with volatile substances

The result of slow degradation

Why do environmental pollutants accumulate in the cold polar regions? This may not only be due to the fact that many substances are less volatile at low temperatures, as has been long suspected, but also to their extremely ...

dateApr 14, 2014 in Environment
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Rosetta-comet will wake up early

( —On its way towards the Sun comet Churyumov-Gerasimenko, next year's destination of ESA's spacecraft Rosetta, will start emitting gas and dust earlier than previously expected. The comet's activity should be ...

dateAug 20, 2013 in Space Exploration
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An electronic nose can tell pears and apples apart

Swedish and Spanish engineers have created a system of sensors that detects fruit odours more effectively than the human sense of smell. For now, the device can distinguish between the odorous compounds emitted by pears and ...

dateMay 08, 2013 in Engineering
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Herbivore defence in ferns

(—Unlike flowering plants, bracken ferns do not release any odour signals to attract the enemies of their attackers for their own benefit.

dateNov 21, 2012 in Plants & Animals
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